It's the best concept I've seen so far from the jam.
It's so simple, in its art, in its premise, in its execution. It takes almost no time to grasp the rules, but it takes careful thought to figure out how far you can go within those limitations.
It brings to mind Baba Is You in its minimalist aesthetic and high implications. It brings to mind Line Rider in its potential for creative self expression. It brings to mind all the fun physics-based puzzle flash games of the aughts in its accessibility.
It would feel just as at-home in an art gallery as it would in an engineering student's software kit.
Scroll wheel zoom is backwards, and sometimes drawing on the edges of the frame will instead pan the screen, which in itself is a functionality that doesn't feel great to use in its current state. These are problems that can be fixed in a few lines of code. Those lines are all that separate this from being a complete and fully realized product.
Absolutely, utterly elegant. Dots and lines. White and black.